Granted Patent
Utility
US 5,989,545 · App. 08/945,037
Clostridial toxin derivatives able to modify peripheral sensory afferent functions
Inventors:
Keith Foster, Michael Duggan, Clifford Shone
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jan 12, 1998
Inventors
Keith Foster
Michael Duggan
Clifford Shone
Assignees (at issue)
The Speywood Laboratory Limited
Microbiological Research Authority
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.